I cannot remember his name but supposedly there was an extremely talented Russian heavyweight during Joe Louis' reign as heavyweight champion that many Russians feel would have defeated the Brown Bomber.

On what basis is this opinion held, though. Louis was a world champion who defeated World and European champions Schmeling and Carnera, European champion Uzcudun, South American champion Godoy, British Empire champion Farr, as well as several other international opponents.

I have no doubt Korolyov was a great national amateur champion and perhaps a top prospect, but it is just unsubstantiated speculation what he would do against Louis. Did he in fact defeat an Olympic champion, a European professional champion, or any top level world rated fighter at all?